<template>
  <section>
    <!--工具条：高级查询 + 新增-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表：列表数据 + 编辑 + 删除-->
    <el-table :data="systemDictionaryTypes" highlight-current-row :row-key="getRowKey"
              v-loading="listLoading" @row-dblclick="showDetails" @selection-change="selsChange" style="width: 100%;">
      <el-table-column type="selection" :reserve-selection="true" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="sn" label="数据字典类型编号" width="150">
      </el-table-column>
      <el-table-column prop="name" label="数据字典类型名称" width="150">
      </el-table-column>
      <el-table-column label="操作">
        <template scope="scope">
          <el-button size="small" @click="handleSave(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条：批量删除 + 分页栏-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :page-size="pageSize" :current-page="currentPage" :total="totals" style="float:right;">
      </el-pagination>
    </el-col>

    <!--添加或修改的对话框-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="160px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="数据字典类型编号" prop="sn">
          <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="数据字典类型名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>

    <!--双击数据字典类型显示当前类型的明细列表-->
    <el-dialog title="当前数据字典类型明细" :visible.sync="showDetailVisible" width="400px" :close-on-click-modal="false">
      <el-table :data="showsystemDictionarysDetails" highlight-current-row style="width: 100%;">
        <el-table-column type="index" width="60">
        </el-table-column>
        <el-table-column prop="name" label="数据字典明细名称">
        </el-table-column>
      </el-table>
    </el-dialog>
  </section>
</template>

<script>
export default {
  data() {
    return {
      //1.分页查询的模型数据
      systemDictionaryTypes: [],      //列表数据，回调函数中给它赋值
      listLoading: false,   //加载框
      currentPage: 1,       //当前页
      pageSize: 5,          //每页显示的条数
      totals: 0,            //总数量

      //2.高级查询
      keyword:'',

      //3.批量删除
      sels: [],//列表选中列

      //4.添加和修改的数据
      saveFormVisible: false,//编辑界面是否显示
      title:"",
      saveLoading: false,
      //表单项规则
      saveFormRules: {
        sn: [
          { required: true, message: '请输入数据字典类型编号', trigger: 'blur' }
        ],
        name: [
          { required: true, message: '请输入数据字典类型名称', trigger: 'blur' }
        ]
      },
      //对话框的数据
      saveForm: {
        id: null,
        sn: '',
        name: ''
      },

      //双击数据字典类型显示当前类型的明细列表
      //对话框是否显示
      showDetailVisible: false,
      //当前类型数据字典明细集合
      showsystemDictionarysDetails:[]

    }
  },
  methods: {
    //1.分页查询 - 获取数据字典类型列表
    getSystemDictionaryTypes() {
      //组装参数
      let paras = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword
      };
      //显示加载框
      this.listLoading = true;
      //使用axios发送分页请求
      this.$http.post("/systemDictionaryType",paras).then(res=>{
        this.systemDictionaryTypes = res.data.data;//显示分页数据
        this.totals = res.data.totals;//计算分页栏
        this.listLoading = false;
      }).catch(res=>{
        this.$message.error("系统繁忙，请稍后重试!!!");
      })
    },

    //2.分页查询 - 点击分页栏触发方法
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getSystemDictionaryTypes();
    },

    //3.高级查询
    keywordQuery(){
      //将当前页置为1，防止出现查询错误
      this.currentPage = 1;
      this.getSystemDictionaryTypes();
    },

    //4.删除
    handleDel: function (index, row) {
      //确认框
      this.$confirm('删除数据字典类型会同时删除数据字典明细，你确定要删除吗?', '提示', {
        type: 'warning'
      }).then(() => { //点击确定走这里
        this.listLoading = true; //显示加载框
        this.$http.delete("/systemDictionaryType/"+row.id).then(res=>{
          //成功之后的处理
          if(res.data.success){
            //计算总页数 = 最后一页
            let totalPage = Math.ceil(this.totals/this.pageSize)
            //如果当前页是最后一页(总页数)，而且是最后一条数据，并且不是第一页，让当前页=当前页-1
           /* if(this.currentPage==totalPage && (this.totals-1)%this.pageSize==0 && this.currentPage!=1){
              this.currentPage = this.currentPage - 1;
            }*/
            if(this.systemDictionaryTypes.length==1 && this.currentPage!=1){
              this.currentPage = this.currentPage - 1;
            }

            this.getSystemDictionaryTypes();
          }else{
            this.$message.error("系统繁忙，请稍后重试!!!【500】");
          }
          this.listLoading = false; //关闭加载框
        }).catch(res=>{
          this.$message.error("系统繁忙，请稍后重试!!!【400,404】");
        })
      }).catch(() => { //点击取消
        //alert("我闹着玩的")
      });
    },

    //5.选项改变的时候触发：参数时每一个选中的对象
    selsChange: function (sels) {
      this.sels = sels;
    },

    //6.批量删除
    batchRemove: function () {
      var ids = this.sels.map(item => item.id);//数组 [1,3,5]
      this.$confirm('删除数据字典类型会同时删除数据字典明细，你确定要删除吗?', '提示', {
        type: 'warning'
      }).then(() => { //点击确定走这里
        this.listLoading = true;
        this.$http.patch("/systemDictionaryType",ids).then(res=>{
          if(res.data.success){
            this.currentPage = 1;
            this.getSystemDictionaryTypes();
          }else{
            this.$message.error("系统繁忙【500】")
          }
          this.listLoading = false;
        }).catch(res=>{
          this.$message.error("系统繁忙【400，404】")
        })
      }).catch(() => {
      });
    },

    //7.点击编辑弹出对话框
    handleSave: function (index, row) {
      this.title = "编辑";
      //克隆：不然修改对话框的数据影响到列表的数据
      this.saveForm = Object.assign({}, row);
      this.saveFormVisible = true;
    },
    //8.点击新增按钮弹出对话框
    handleAdd: function () {
      this.title = "新增";
      this.saveForm = {
        id: null,
        sn: '',
        name: ''
      };
      //弹出对话框
      this.saveFormVisible = true;
    },
    //9.点击添加和修改对话框的提交按钮提交数据
    saveSubmit: function () {
      //表单验证：只要有一个表单项验证不通过就会返回false，全部通过才会返回true
      this.$refs.saveForm.validate((valid) => {  //ref="saveForm"
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;

            this.$http.put("/systemDictionaryType",this.saveForm).then(res=>{
              if(res.data.success){
                this.getSystemDictionaryTypes();
              }else{
                this.$message.error("系统繁忙【500】")
              }
              this.saveLoading = false;
            }).catch(res=>{
              this.$message.error("系统繁忙【400，404】")
              this.saveLoading = false;
            })
            //关闭对话框
            this.saveFormVisible = false;
          });
        }
      });
    },
    //10.仅仅是用来区分每一个对象的唯一标识
    getRowKey(row){
      return row.id;
      //return row.sn;//同上
    },
    //11.双击某一行查询当前类型的数据字典明细//row表示当前行对象
    showDetails(row){
      this.$http.get("/systemDictionaryDetail/getByTypeId/"+row.id).then(res=>{
        this.showsystemDictionarysDetails = res.data;
        this.showDetailVisible = true;
      })
    }
  },
  mounted() {
    this.getSystemDictionaryTypes();
  }
}

</script>

<style scoped>

</style>